Facts Summary: Ptychophallus tristani is a species of concern belonging in the species group "crustaceans" and found in the following area(s): Costa Rica. This species is also known by the following name(s): Ptychophallus campylos.

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Ten Creatures that may become extinct in the next 10 years

1. Leatherback Sea TurtleLeatherback sea turtles have been around since pre-historic times. And unfortunately, if the species is allowed to vanish, scientists believe it will foreshadow the extinction of a host of other marine species. It is estimated that there are less than 5,000 nesting female leatherback sea turtles in the Pacific Ocean today, down from 91,000 in 1980.